:root {
  --text: #0e213b;
  --muted: rgba(14, 33, 59, 0.7);
  --glass-strong: rgba(255, 255, 255, 0.3);
  --stroke: rgba(255, 255, 255, 0.5);
  --shadow: 0 16px 42px rgba(13, 30, 54, 0.16);
  --radius-xl: 32px;
  --radius-lg: 24px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Noto Sans TC", system-ui, sans-serif;
  color: var(--text);
}

.bg {
  position: fixed;
  inset: 0;
  background: url("./bg.png") center/cover no-repeat;
}

.bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 10% 20%, rgba(255, 255, 255, 0.42), transparent 42%),
    radial-gradient(circle at 90% 12%, rgba(255, 255, 255, 0.28), transparent 38%);
}

.app-shell {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: grid;
  grid-template-columns: 310px 1fr;
  gap: 22px;
  padding: 22px;
}

.sidebar,
.content {
  border: 1px solid var(--stroke);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.sidebar {
  border-radius: var(--radius-xl);
  background: linear-gradient(160deg, var(--glass-strong), rgba(255, 255, 255, 0.14));
  padding: 20px;
  display: flex;
  flex-direction: column;
}

.brand {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-bottom: 18px;
}

.brand__dot {
  width: 38px;
  height: 38px;
  border-radius: 13px 13px 13px 13px / 13px 13px 24px 13px;
  background: url("./assets/LOGO.jpg") center/cover no-repeat;
  border: 1px solid rgba(255, 255, 255, 0.65);
  box-shadow: 0 8px 20px rgba(13, 30, 54, 0.14);
}

.brand__title {
  font-weight: 800;
  font-size: 15px;
}

.brand__sub {
  color: var(--muted);
  font-size: 12px;
  margin-top: 2px;
}

.menu {
  display: grid;
  gap: 10px;
}

.menu__btn {
  border: 1px solid var(--stroke);
  background: rgba(255, 255, 255, 0.18);
  color: var(--text);
  border-radius: 14px 14px 32px 14px;
  padding: 12px 14px;
  display: flex;
  align-items: center;
  gap: 9px;
  text-align: left;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.18s ease;
}

.menu__icon {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  border-radius: 8px 8px 8px 8px / 8px 8px 14px 8px;
  background: url("./assets/LOGO.jpg") center/cover no-repeat;
  border: 1px solid rgba(255, 255, 255, 0.65);
}

.menu__btn:hover {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.28);
}

.menu__btn[aria-current="page"] {
  background: linear-gradient(120deg, rgba(44, 124, 255, 0.24), rgba(25, 200, 168, 0.22));
  border-color: rgba(255, 255, 255, 0.75);
}

.content {
  border-radius: var(--radius-xl);
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.22), rgba(255, 255, 255, 0.12));
  padding: 24px;
}

.hero__chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--stroke);
  background: rgba(255, 255, 255, 0.24);
  font-size: 12px;
  font-weight: 700;
}

.chip__icon {
  width: 18px;
  height: 18px;
  border-radius: 6px 6px 6px 6px / 6px 6px 11px 6px;
  background: url("./assets/LOGO.jpg") center/cover no-repeat;
  border: 1px solid rgba(255, 255, 255, 0.65);
  flex-shrink: 0;
}

.hero__title {
  margin: 12px 0 8px;
  font-size: 36px;
  line-height: 1.15;
}

.hero__subtitle {
  margin: 0;
  font-size: 15px;
  color: var(--muted);
}

.panel {
  margin-top: 18px;
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 16px;
}

.card {
  border: 1px solid var(--stroke);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.2);
  box-shadow: 0 10px 24px rgba(13, 30, 54, 0.1);
  padding: 16px;
}

.card__title {
  margin: 2px 0 12px;
  font-size: 20px;
}

.image-stack {
  display: grid;
  gap: 12px;
}

.card--image img {
  width: 100%;
  height: 420px;
  object-fit: contain;
  border-radius: 18px 18px 42px 18px;
  border: 1px solid var(--stroke);
  background: rgba(255, 255, 255, 0.38);
  padding: 8px;
}

.is-hidden {
  display: none;
}

.card__small-title {
  margin: 2px 0 8px;
  font-size: 16px;
}

.card__desc {
  margin: 0 0 16px;
  color: var(--muted);
  line-height: 1.8;
  white-space: pre-wrap;
}

.highlights {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.75;
}

@media (max-width: 1050px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .panel {
    grid-template-columns: 1fr;
  }

  .card--image img {
    height: 320px;
  }
}